Method and plant for the manufacture of green tyres

ABSTRACT

The assembly of devices for production of green tyres, consisting of a belt building drum, tread building drum, band drum for preparing a carcass and a forming drum and further includes devices for transferring particular components or assemblies of the components from one device to another, an apparatus for placing and holding a bead and the carcass assembly, stiching unit, and particular servisers for supplying materials to particular devices. The assembly of devices is arranged into two parallel transfer tracks  20  and  50  and includes the band drum  30  for preparing carcass assembly, the tyre building drum 130, the apparatus  150  for placing and holding the head and the carcass assembly on the first transfer track  20,  the apparatus  150  is disposed between the said band drum  30  for preparing the carcass assembly, and the tyre-building drum  130.  On the second transfer track  50  there are belt drum  60,  band drum  70  for winding a tread around the belt and a first transfer ring  80  between the said belt drum  60  and band drum  70  for winding a tread all being movably disposed. There is an auxiliary track  90  arranged in a horizontal plane above the place  140  of assembly, the auxiliary track runs at right angles in relation to the first and second transfers tracks ( 20, 50 ). Under the auxiliary track  90  there is a second transfer ring for transferring a belt-tread assembly on the place  140  of assembly movably hand on the said track  90.

TECHNICAL FIELD

The invention concerns an assembly of devices for production of greentyres, consisting of several devices arranged to an assembly, whichallows continuous linking manufacture of one component to another andtheir subsequent completing, resulting in the green tyre. The inventionconcerns also a method for making green tyres.

BACKGROUND ART

Recently, there are known several methods of green tyre production andthe corresponding devices and assembling apparatus. Each of them showssome merits or advantages in comparison with the other, but also someshortcomings. Actually, the structural solution of particular devices,their arrangement and mutual interconnection determines thecorresponding method of green tyre production.

Most of the tyre building lines are designed in the so-calledsingle-line arrangement, where the intermediate products necessary forthe green tyre production are supplied, pretreated and completed to thefinal product on tyre building drums, which are usually arranged on onelongitudinal axis of the line. In a line with such an arrangement, it isvery difficult to utilize new progressive elements concerning both thestructural solution of its particular devices and introducing moreprogressive methods of green tyre production and optimization of thetechnological process of the production.

Also known are apparatus for green tyre production, the particularstations of which are arranged on several axes. The U.S. Pat. No.5,853,525 discloses an apparatus for radial tyre production by a methodin which the tyre carcass is formed to a cylindrical shape in advanceand expanded on a shaping drum so as to wrap the bead core bundles withapices. Subsequently an inner liner is slipped into the carcass in afirst transfer ring, the ply having a smaller diameter than that of thecarcass cylinder and being pressed against its inner surface, thuscreating a first assembly. During this time on a second band formingdrum, sidewalls and reinforcing bands are formed into a cylindricalshape to wrap the bead cores so as to provide a second assembly ofsidewalls having a smaller diameter than that of the first assembly. Atthat time the first transfer ring holding the first assembly and thesecond band drum are moved coaxially relative to each other. After thesecond assembly is arranged in a predetermined position within the firstassembly, the second assembly is expanded and pressed against the firstassembly, thus creating a third assembly. The first transfer ring andthe shaping drum move to a determined position and the third assembly,disposed in the first transfer ring, is transferred onto the shapingdrum. Then the shaping drum is expanded and the bead core holders moveagainst each other to create a round form of the shaped green tyre. Abelt-tread assembly which has been previously formed into a cylindricalshape on a further band drum, is supplied by means of a second transferring and attached to the third assembly during shaping. Herewith thegreen tyre production is completed. Servisers with the correspondingmaterials are assigned to all of the above drums.

This method can be accomplished on an apparatus which is arranged on twoparallel axes, the first and the second band drum as well as a devicefor supplying the bead cores and plies being arranged on one axis, andthe shaping drum and a drum for making the belt-tread assembly inadvance being arranged on the second axis.

This method can be accomplished also on an apparatus, which is arrangedon three parallel axes, where the second band drum is arranged on themiddle axis.

EP 597125 B1 discloses an apparatus for tyre production comprising aband drum, a shaping (building) drum and a device comprising two beltforming drums which can be oscillated or cyclically moved, where theband drum and the device with two belt forming drums are disposed on oneaxis in opposing relationship. The shaping drum is disposed so that itcan be reciprocated between a position on the aforesaid axis, and astand-by position maintaining the parallel condition with respect to theabove axis. The carcass and belt transfer units are disposed so thatthey can be reciprocated along the aforesaid axis between the band drumand the belt forming device.

EP 880436 B1 describes an apparatus for production of green tyres forvehicles, consisting of a first machine house with two coaxiallydisposed belt building shafts extending in a first horizontal maindirection, where the first shaft is carrying a belt building drum andthe second shaft is carrying a tread building drum, this drum beingdisposed at a greater distance from the first machine house along thefirst horizontal main direction. Drives for these shafts areindependent. The apparatus further comprises a second machine house witha shaft rotating along a second horizontal main direction, which isparallel to the first horizontal main direction. The shaft of the secondmachine house is carrying two carcass shafts, which are arrangedparallel to each other at a certain distance, where the first shaft iscarrying a first carcass drum and the second shaft is carrying a secondcarcass drum. The shafts are driven independently and they arerotationally arranged in such a way that each of them can be broughtonto the axis of the first horizontal main direction. The apparatuscomprises a transfer track with transfer direction parallel to the firsthorizontal main direction, on which there are disposed a first transferring movable between the belt building drum and the tread building drum,and a second transfer ring movable between the tread building drum and acarcass drum, rotated in line with the axis of the first main direction.On the transfer track, there is disposed a unit for holding and placingthe bead cores on the carcass drum, which is rotated in line with theaxis of the first main direction. The apparatus further comprisesservisers for particular components, a stitching device, disposed belowthe shaping drum, and a unit for removing the complete tyres.

DISCLOSURE OF INVENTION

The assembly of devices for green tyre production according to theinvention is suitable for producing tyres for passenger cars. Such tyresusually consist of inner rubber, on which one or two carcass plies aredisposed, the tyres further comprising bead wires with cores, twobreaker plies creating together a belt, a narrow strip to be spiralled,sidewalls and tread, where the tread edge may overlap the sidewalls orvice versa. The subject matter of the assembly of devices according tothe invention consists in the fact that the devices are disposed on twoparallel transfer tracks with a specified place for green tyrecompletion. On the first transfer track, there is a movably arrangedmachine house provided with a carcass building drum for making thecarcass assembly, which assembly consists of two sidewall bands, innerrubber and carcass plies. A serviser for carcass assembly is assigned tothe carcass building drum to supply it with material.

On the second transfer track, there is a movably disposed machine houseprovided with a belt building drum. On the same track, but in theopposite direction, there is a further movably arranged machine houseprovided with a tread building drum for winding up the tread andpossibly also spiralling the narrow strip which should be disposedbetween the belt and the tread. The first transfer ring is movablydisposed on the same transfer track between the belt building drum andthe tread building drum, to transfer the belt from the belt buildingdrum onto the tread building drum for winding up the tread and possiblyalso spiralling the narrow strip, thus creating the belt-tread assembly.With the belt building drum, there are associated two servisers tosupply the belt material, and with the tread building drum for windingup the tread and possibly also spiralling the narrow strip, there areassociated a serviser to supply the tread and a winding device forspiralling the narrow strip, with which is associated a serviser forsupplying the narrow strip to be spiralled.

A tyre building drum with a machine house is movably arranged on thefirst transfer track, but in the opposing relation to the carcassbuilding drum. A device for supporting and adjusting the bead cores andfor holding the carcass assembly is movably arranged on the firsttransfer track between the carcass building drum and the tyre buildingdrum. The place for completing the green tyre is located on the firsttransfer track. An auxiliary transfer track is provided above this placein a horizontal plane above the plane of the first and second transfertrack, wherein the auxiliary track is extending perpendicularly to thefirst and second transfer track. A second transfer ring is movablydisposed on the auxiliary track, to transfer the belt-tread assembly tothe completing place and, simultaneously, for removing the completedgreen tyre from the tyre building (shaping) drum. This second transferring is suspended on the auxiliary track so that it can move under thetrack. A stitching device is disposed at the completing place, to shapethe edges of the green tyre. The stitching device may be situated eitheron the inner side of the first transfer track or on the outer side ofthe first transfer track.

According to a further embodiment the assembly of devices for productionof green tyres consists of a first and a second transfer track. Like inthe first embodiment, a machine house, carrying a carcass building drum,is movably disposed on the first transfer track, and opposite to it onthe same track, there is a machine house, carrying the tyre buildingdrum. A device for supporting and adjusting the bead cores and holdingthe carcass assembly, which is unmovable along the first transfer track,is disposed at the completing place, which is located on the firsttransfer track.

On the second transfer track, there is disposed a machine house providedwith two drums on one axis, which are carried on two coaxially arrangedshafts, wherein the drum, which is closer to the machine house, is thebelt building drum, and the drum at a greater distance from the machinehouse is the tread building drum. With the second drum, there isassociated a tread serviser, a winding device for spiralling the narrowstrip and a serviser for the narrow strip to be spiralled, like in thefirst embodiment. A first transfer ring is movably disposed betweenthese drums, to transfer the belt from the belt building drum onto thetread building drum.

A second transfer ring is disposed at the completing place,perpendicularly to the first and second transfer track. This transferring is made as a transfer device, comprising 2 to 4 transfer rings,which are rotationally arranged at the completing place in a planeperpendicular to the first and second transfer track. This transferdevice extends with one transfer ring to the completing place, and witha further transfer ring in the same plane to the area of the secondtransfer track. The transfer ring, which is extending to the secondtransfer track, can be brought to the area of the first transfer trackand vice versa, by turning twice by 90°, if the device comprises 4transfer rings, or by turning once by 180°, if the device comprises 2transfer rings, around an axis parallel with the transfer tracks.

The assembly of devices according to the first embodiment performs thefollowing operations: The first breaker ply is wound on the beltbuilding drum, which is disposed on the second transfer track, the drumis moved to the second breaker ply serviser and the second breaker plyis wound. The breaker plies are supplied from the breaker ply servisers,oriented perpendicularly to the transfer track. This building drum ismoved to a position, in which the first transfer ring can take over thecompleted belt. The first transfer ring grasps the completed belt fromthe outside, the drum reduces its diameter and returns to the startingposition, and a new cycle of belt building starts. The first transferring shifts to the waiting tread building drum and delivers to it thepretreated belt. The tread building drum increases its diameter, therebyaccepting the belt, and the narrow strip, supplied from the serviser forthe narrow strip to be spiralled, is wound up on the pretreated belt,which is deposited on the winding drum, by the winding device.Subsequently, tread material is supplied from the tread serviser to thisdrum, and a belt-tread assembly is built up. The tread building drumshifts to the area of the auxiliary track, reduces its diameter anddelivers the belt-tread assembly to the waiting second transfer ring,which grasps it from the outside and shifts to the completing place. Thetread building drum returns to the starting position and is ready toaccommodate the belt and to wind up the tread in the next cycle.

During the preparation of the belt-tread assembly on the building drumson the second transfer track, the carcass assembly, supplied from acombined serviser, is being prepared on the carcass building drum. Thecarcass assembly comprises sidewalls of the tyre, inner rubber and oneor two carcass plies. After the building drum has been shifted into thedevice for supporting and adjusting the bead cores and holding thecarcass assembly, the carcass building drum reduces its diameter anddelivers the carcass assembly in the form of a cylinder jacket to theready device for supporting and adjusting the bead cores and holding thecarcass assembly, in which the bead cores and bead apices have beenprepared. Subsequently, the carcass building drum is shifted out of thedevice for supporting and adjusting the bead cores and holding thecarcass assembly and it returns into the starting position, where itstarts working in the next cycle.

The device for supporting and adjusting the bead cores and holding thecarcass assembly grasps the carcass assembly from the outside in suchorientation that the bead cores are brought into the correct position,and it shifts to a place, where it delivers the carcass assembly withadjusted bead cores to the tyre building drum and returns to thestarting position. The tyre building drum with the carcass assembly isinserted into the ready second transfer ring with the belt-treadassembly and completing the green tyre is started immediately. It meansinflating the carcass assembly, bringing the bead cores closer to eachother, bending the sidewalls by lever arms, and attaching the belt-treadassembly to the carcass assembly. After the carcass assembly is inflatedand the bead cores are close to each other at a predetermined distance,and the carcass assembly touches the ready belt-tread assembly, thebelt-tread assembly is released from the second transfer ring.Subsequently, stitching is executed, which is performed by the stitchingdevice, thus forming the green tyre edges. After performing the lastoperation, the second transfer ring grasps the completed green tyre andshifts to a position, where it is possible to take it away, i.e. toremove it from the area of the green tyre building apparatus.

The assembly of devices according to the second embodiment performs thefollowing operations:

The carcass assembly is prepared in the same way and according to thefirst embodiment on a carcass building drum, which is disposed on thefirst transfer track. A machine house with the building drum, carryingthe carcass assembly, is shifted to the completing place, where itdelivers the ready carcass assembly in the form of a cylinder jacket tothe waiting device for supporting and adjusting the bead cores and thecarcass assembly. The tyre building drum moves to the completing placeand takes over the carcass assembly with supported and adjusted beadcores. After taking over the carcass assembly with the bead cores, thetyre building drum moves to the starting position.

On the second transfer track, breaker material from the breakerservisers is wound up on the belt building drum. The first transfer ringtakes over the belt from the belt building drum. After the firsttransfer ring has taken over the belt and through a short movement ofthe first transfer ring, the belt is brought above the drum which isfurther apart from the machine house, thus the tread building drum, towhich the belt is delivered by the first transfer ring, to wind thetread over it and possibly also the narrow strip to be spiralled. Afterthe tread has been wound up, thus having finished the cycle on bothdrums, the machine house, carrying both drums, is shifted on the secondtransfer track to such position that the drum with the wound upbelt-tread assembly is brought to the area of the second transfer ringof the transfer device, which position is in the area above the secondtransfer track. The second transfer ring of the transfer deviceextending to the second transfer track receives the belt-tread assemblyfrom the tread building drum in such position of the machine house,which it has assumed after it has been shifted in the direction of thesecond transfer track.

When the drum is shifted out from the second transfer ring of thetransfer device, the transfer device moves the second transfer ring withthe belt-tread assembly to the area of the first transfer track, thus tothe completing place, through a rotational movement around an axisparallel to the first and second transfer track, in a planeperpendicular to the first and second transfer track at the completingplace.

At that time the tyre building drum with ready carcass assembly andadjusted bead cores is slipped into the second transfer ring and thecompleting starts as described.

Simultaneously with transferring the second transfer ring of thetransfer device to the completing place the opposite transfer ring withthe finished green tyre, received from the tyre building drum, istransferred from the completing place to an area, where it is possibleto remove the completed green tyre by a manipulator or by an operator.

The advantage of the assembly of devices according to the inventionconsists in that it represents such combination of suitable devices as awhole, which has never been applied yet. Mobility of particular devicesand combination of their movements allows to shorten the times ofmaterial transfer. The apparatus is designed in such a way, that themutual arrangement and linking of devices allow to implement progressiveelements in an application of the technological process of green tyresproduction and, simultaneously, they allow not only higher productivity,but also high flexibility and quality of the production. The apparatusfor green tyres production is arranged in a so-called two-axis version,which allows to aply the above given advantages.

BRIEF DESCRIPTION OF DRAWINGS

Enclosed FIGS. 1 and 2 show schematically an assembly of devices forproduction of green tyres according to the invention in two structuralarrangements,

FIG. 3 shows schematically the transfer device, and

FIG. 4 shows a partial section view of a green tyre.

EXAMPLES OF EMBODIMENTS Example 1

An assembly of devices for production of green tyres, as shown in FIG.2, is movably disposed on two parallel transfer tracks 20 and 50. On thetransfer track 20, there is movably disposed a machine house 10 providedwith a carcass building drum 30 for production of the carcass assembly,which consists of two sidewall bands 4, inner rubber 1 and the carcassplies 3. With the winding drum 30, there is associated a serviser 180 tosupply it with material.

On the transfer track 50, there is movably arranged a machine house 40,carrying a belt building drum 60. On the same track, but in the oppositedirection, there is movably arranged a machine house 42, carrying awinding drum 70 for production of the belt-tread assembly and possiblyalso for spiralling the narrow strip 6, which should be disposed betweenthe belt 5-and tread 7. A first transfer ring 80 is movably arranged onthe transfer track 50 between the building drums 60 and 70, to transferthe belt onto the winding drum 70 for winding up the tread and possiblyalso the spiralled narrow strip. With the building drum 60, there areassociated two servisers 190 for supplying the breaker material, andwith the building drum 70, there are associated a serviser 200 forsupplying the tread and a winding device 170 for spiralling the narrowstrip, with which is associated a serviser 210 for supplying the narrowstrip to be spiralled.

A tyre building drum 130 with a machine house 110 is movably disposed onthe transfer track 20, but in the opposing relation to the carcassbuilding drum 30. A device 150 for supporting and adjusting the beadcores 2 and the carcass assembly is movably arranged between thebuilding drum 30 and the tyre building drum 130. The place 140 forcompleting the green tyre is disposed on the transfer track 20. Anauxiliary track 90 is provided above this place in a horizontal planeabove the planes of the first and second transfer tracks 20, 50, whereinthe auxiliary track 90 extends perpendicularly to the first and secondtransfer track 20, 50. Under the auxiliary track 90, there is a secondtransfer ring 100 movably suspended on it to deliver the belt-treadassembly to the completing place 140, and, simultaneously, to carry theready green tyre away. Also a stitching device 160 is disposed at thecompleting place from the outside of the track 20.

The tyres produced in the assembly of devices according to the inventionusually consist of the inner rubber 1 with the carcass plies 3 disposedon it, and further comprise the bead cores 2, two breaker plies 5,creating the belt, the spiralled narrow strip 6, the tyre sidewalls 4and the tread 7, where the edge of the tread 7 may overlap the sidewalls4 or vice versa.

The assembly of devices, as shown in FIG. 2, operates as follows: Firstand second breaker ply 5, delivered from the servisers 190, are wound upon the building drum 60 and the building drum 60 is moved to a position,in which it can be taken over by the first transfer ring 80, whichgrasps it from the outside, the drum 60 reduces its diameter and returnsto the starting position, and a new cycle of breaker ply winding starts.The transfer ring 80 shifts to the waiting winding drum 70 and deliversto it the pretreated belt. The drum 70 increases its diameter, wherebyreceiving the belt, and the narrow strip 6, supplied from the serviser210 for the narrow strip to be spiralled, is spiralled on the pretreatedbelt, deposited on the winding drum 70, by the device 170. Subsequently,tread material is supplied from the tread serviser 200 to the drum 70,and a belt-tread assembly is built up. The winding drum 70 is shifted tothe area of the auxiliary track 90, reduces its diameter and deliversthe belt-tread assembly to the waiting second transfer ring, whichgrasps it from the outside and shifts to the completing place 140. Thedrum 70 returns to the starting position and is ready-to wind up thebelt in the next cycle.

During the preparation of the belt-tread assembly on the building drums60 and 70 on the track 50, a carcass assembly, supplied from theserviser 180, is being prepared on the building drum 30. The carcassassembly comprises the tyre sidewalls 4, the inner rubber 1 and one ortwo carcass plies 3. After the building drum 30 has been shifted intothe device 150 for supporting and adjusting the bead cores and thecarcass assembly, it reduces its diameter and delivers the carcassassembly in the form of a cylinder jacket to the ready device 150 forsupporting and adjusting the bead cores and the carcass assembly, inwhich the bead wires and bead cores 2 have been prepared in advance. Thedrum 30 is shifted out of the device 150 and it returns to the startingposition and starts working in the next cycle.

The device 150 for supporting and adjusting the bead cores and thecarcass assembly clamps the carcass assembly from the outside in suchorientation, in which the bead cores 2 are brought into the rightposition, and it shifts to a place, where it delivers the carcassassembly with adjusted bead cores and carcass assembly to the tyrebuilding drum 130. The tyre building drum 130 increases its diameter,whereby receiving the material from the device 150, and at thecompleting place 140 it is shifted into the second transfer ring 100 andthe green tyre completing is started immediately, involving inflatingthe carcass assembly, bringing the bead cores closer to each other,bending the sidewalls by lever arms, and attaching the belt-treadassembly to the carcass assembly. After the carcass assembly has beeninflated and the bead cores have been brought close to each other at apredetermined separation, and the carcass assembly touches the readybelt-tread assembly, the belt-tread assembly is released from the secondtransfer ring 100. Subsequently, the stitching is executed, which isperformed by the stitching device 160, whereby the green tyre edges areformed. After performing the last operation, the second transfer ring100 grasps the completed green tyre and it shifts to a position, whereit is possible to remove it, i.e. to remove it from the area of theapparatus for production of the green tyre. The second transfer ring 100performs any movements only along a track, which is perpendicular to theparallel tracks 50 and 20.

Example 2

The assembly of devices for production of green tyres, as shown in FIG.1, consists, like the assembly of devices described in Example 1, of atrack 20, where the same devices as described are disposed, the onlydifference being in the disposition of the stitching device 160, whichis disposed from the inner side of the track 20, and in the dispositionof the device 150 for supporting the bead cores and the carcassassembly, which is disposed at the completing place 140. The device 150for supporting the bead cores and the carcass assembly leaves thecompleting place 140 only at the time of loading a new set of bead cores2, along a short path, perpendicular to the first transfer track 20 atthe completing place 140. On the track 50, there is disposed a machinehouse 40, carrying two building drums 60 and 70 on one axis on axiallyarranged shafts. Closer to the machine house 40, there is disposed abelt building drum 60, and the winding drum 70 for winding up the tread7 and the narrow strip 6 to be spiralled is disposed further apart.Between the belt building drum 60 and the belt-tread building drum 70,there is a first transfer ring 80 movably located on the track 50, totransfer the belt from the building drum 60 onto the winding drum 70 towind up the tread 7 and possibly also the narrow strip 6 to be spiralledby the winding device 170 for the narrow strip to be spiralled. Thecomplete belt-tread assembly is taken over from the winding drum 70 byone of the transfer rings 101 to 104 of the transfer device 91, forexample by the transfer ring 101, and at a suitable moment delivered bythe transfer device (by rotation) to the completing place 140.

When the bead cores in the device 150 and the belt-tread assembly in thering 101 have been prepared, the drum 30 transfers the carcass assemblyinto the device 150 for supporting and adjusting the bead cores andholding the carcass assembly, which is disposed at the completing place140. After the building drum 30 has left the completing place 140, thetyre building drum 130 moves to the completing place 140, increases itsdiameter and clamps the carcass assembly with adjusted bead cores in thedevice 150 from the inner side, and the tyre building drum 130 returnsto the starting position, while the belt-tread assembly remaines clampedon the tyre building drum 130. At that time one of the transfer rings101 to 104 of the transfer device 91 moves to the completing place 140,for example the ring 101, carrying the belt-tread assembly. The tyrebuilding drum 130 is the last, which is shifted to the completion place,and the tyre completion starts.

Having been completed, the complete tyre is removed by an operator or bya manipulator.

INDUSTRIAL APPLICABILITY

The invention concerns rubber industry and it is possible to utilize itexclusively for production of radial tyres for vehicles.

1. An assembly of devices for production of green tyres, consisting of abelt building drum, a tread building drum, a carcass building drum and atyre building drum, and further including devices for transferringparticular semi-products from one device to another, a device forpositioning and supporting bead cores and carcass assembly, a stitchingdevice and material servisers, which are associated with the respectivedrums characterized in that the assembly is arranged on two paralleltransfer tracks (20 and 50) and comprises: on a the first transfer track(20), a movably disposed carcass building drum (30), a movably disposedtyre building drum (130), which is oriented opposite to the carcassbuilding drum (30), a device (150) for supporting and adjusting the beadcores and the carcass assembly being disposed between the carcassbuilding drum (30) and the tyre building drum (130), on the secondtransfer track (50), a movably disposed belt building drum (60), a treadbuilding drum (70), between the movably disposed belt building drum (60)and the winding drum (70) being disposed a first transfer ring (80) totransfer a belt from the belt building drum (60) onto the tread buildingdrum (70), an auxiliary track (90), arranged perpendicularly to thefirst and second transfer track (20, 50) in a horizontal plane above thefirst and second transfer track (20, 50) at a completing place (140),which is disposed on the first transfer track (20), wherein a secondtransfer ring (100) is disposed below the auxiliary track (90) todeliver a belt-tread assembly to the completing place (140), as well asto remove a complete green tyre, a device (170) for spiralling a narrowstrip together with a serviser for the narrow strip to be spiralled,which is associated with the winding drum (70), a serviser (180) forsupplying materials for preparation of the carcass assembly to thecarcass building drum (30), servisers (190) for supplying breaker pliesto the belt building drum (60), a serviser (200) for supplying tread tothe winding drum (70) for production of the belt-tread assembly, and astitching device (160) for forming tyre edges, which is disposed closeto the first first transfer track (20) at the completing place (140). 2.An assembly of devices for production of green tyres according to claim1, characterized in that the belt building drum (60) is carried by ashaft of a first machine house (40), which is movably disposed on thesecond transfer track (50), and the winding drum (70) for production ofthe belt-tread assembly is carried by a shaft of a second machine house(42), which is also movably disposed on the second transfer track (50),and the drums are arranged on one horizontal axis and oriented oneagainst each other.
 3. An assembly of devices for production of greentyres according to claim 1, characterized in that the belt building drum(60) and the winding drum (70) for production of the belt-tread assemblyare carried by two independent, coaxially arranged shafts on one axiswith a first machine house (40), which is movably disposed on the secondtransfer track (50), being arranged so that the belt building drum (60)is disposed closer to the machine house (40) and the building drum (70)is arranged further apart from the machine house (40), and a firsttransfer ring (80) is movably disposed therebetween.
 4. An assembly ofdevices for production of green tyres according to claim 1,characterized in that the device (150) for supporting and adjusting thebead cores and the carcass assembly, is movably disposed on the firsttransfer track (20) between the carcass building drum (30) and the tyrebuilding drum (130).
 5. An assembly of devices for production of greentyres according to claim 1, characterized in that the device (150) forsupporting and adjusting the bead cores and holding the carcass assemblyis disposed on the first transfer track (20) at the completing place(140).
 6. An assembly of devices for production of green tyres accordingto claim 1, characterized in that t a second transfer ring (100) fordelivering the belt-tread assembly to the completing place (140), aswell as for removing the complete green tyre, is movably suspended onthe auxiliary track (90) and moving along the auxiliary track (90) in avertical plane, perpendicular to the transfer tracks (20 and 50) andintersecting the first transfer track (20) at the completing place(140).
 7. An assembly of devices for production of green tyres accordingto claim 1, characterized in that the auxiliary track (90) with thesecond transfer ring (100) is provided i n t he form of a transferdevice (91), equipped with 2 to 4 transfer rings (101 to 104), which areregularly displaced and arranged rotationally around a rotation axisparallel to the first and second transfer track (20, 50), wherein thetransfer rings (101 to 104) are rotationally disposed in a verticalplane, perpendicular to the rotation axis, as well as to both the firstand the second transfer track (20, 50), wherein if one of the rings (101to 1 04) extends to the completing place (140) and is disposed on oneaxis with the tyre building drum (130), the opposite ring (101 to 104)is disposed on the axis of the building drums (60 and 70).
 8. Anassembly of devices for production of green tyres according to claim 1,characterized in that a stitching device (160) is disposed at thecompleting place from the outside of the first transfer track (20). 9.An assembly of devices for production of green tyres according to claim1, characterized in that the stitching device (160) is disposed at thecompleting place (140) from the inner side of the first transfer track(20).
 10. A method for production of green tyres by applying to theassembly of devices according to claim 14, characterized in that it themethod includes the following steps: belt preparation on the beltbuilding drum (60), which is disposed on the second transfer track (50),by winding up the first and the second breaker ply delivered frombreaker ply servisers; belt transfer from the belt building drum (60)onto the winding drum (70) by a movement of the first transfer ring (80)on the second transfer track (50); winding up the tread (7) onto thebelt, wherein the tread is supplied from the tread serviser (200) and abelt-tread assembly results; shifting the belt-tread assembly into thearea of the auxiliary track (90); clamping and transfer of thebelt-tread assembly to the completing place (140) by the second transferring (100); preparation of a carcass assembly, consisting of the tyresidewalls, the inner rubber and one or two carcass plies, on a carcassbuilding drum (30), disposed on the first transfer track (20), fromcarcass materials supplied by a combined serviser (180) of the carcassassembly; transfer of the carcass assembly from the carcass buildingdrum (30) into the device (150) for supporting and adjusting the beadcores and carcass assembly and adjusting the bead cores into a correctposition; transfer of the carcass assembly with adjusted bead cores bythe device (150) for adjusting and supporting the bead cores and carcassassembly onto the tyre building drum (130) by a movement on the firsttransfer track to the completing place (140); completion of the greentyre on the tyre building drum (130), including rotating the tyrebuilding drum (130), inflating the carcass assembly, wrapping the beadcores, bringing them closer to each other and subsequent creating thetyre sidewalls and attaching the belt-tread assembly; stitching thebelt-tread assembly by the stitching device (160); and clamping andtransfer of the completed green tyre by the second transfer ring (100)to a place, where it can be removed.
 11. A method for production ofgreen tyres by applying to the assembly of devices according to claim15, characterized in that it includes the following steps: beltpreparation on the belt building drum (60), which is disposed on thesecond transfer track (50), by winding up a first and subsequently asecond breaker ply delivered from breaker ply servisers (190); belttransfer from the belt building drum (60) onto the winding drum (70) bya movement of the first transfer ring (80) on the second transfer track(50); winding up the tread (7) onto the belt, where the tread issupplied from the tread serviser (200) and a belt-tread assemblyresults; shifting the belt-tread assembly into the area of one of thetransfer rings (101 to 104) of the transfer device (91), which iscurrently present in the area of the second transfer track on the axisof the building drums (60, 70); preparation of a carcass assembly,consisting of tyre sidewalls, inner rubber and one or two carcass plies,on the carcass building drum (30), disposed on the first transfer track(20), from carcass materials supplied by a combined serviser (180) ofthe carcass assembly; transfer of the carcass assembly by the carcassbuilding drum (30) into the device (150) for adjusting and supportingthe bead cores and carcass assembly and adjusting the bead cores into acorrect position; taking over the carcass assembly with adjusted beadcores by the tyre building drum (130) from the device (150) at thecompleting place (140) and transfer of the tyre building drum (130) to astarting position; transfer of the belt-tread assembly to the completingplace (140) by one of the transfer rings (101 to 104) of the transferdevice (91); transfer of the carcass assembly with adjusted bead coresto the completing place (140); completion of the green tyre on the tyrebuilding drum (130), including rotating the tyre building drum (130),inflating the carcass assembly, wrapping the bead cores, bringing themcloser to each other and subsequent creating the tyre sidewalls andattaching the belt-tread assembly; stitching the belt-tread assembly bythe stitching device (160); and clamping and transfer of the completedgreen tyre by a transfer ring (101 to 104) of the transfer device (91)to a place, where it can be removed.
 12. A method for production ofgreen tyres according to claim 10, characterized in that after havingtransferred the belt onto the tread building drum and before the treadbuilding a narrow strip supplied from a serviser (210) is wound up onthe belt in a spiralled manner by a winding device (170) for spirallingthe narrow strip.
 13. A method for production of green tyres accordingto claim 11, characterized in that after having transferred the beltonto the tread building drum and before the tread building a narrowstrip supplied from a serviser (210) is wound up on the belt in aspiralled manner by a winding device (170) for spiralling the narrowstrip.
 14. An assembly of devices for production of green tyres,characterized in that the assembly of devices is arranged on twoparallel transfer tracks (20 and 50) and comprises: on a first transfertrack (20), a movably disposed carcass building drum (30), a movablydisposed tyre building drum (130), which is oriented opposite to thecarcass building drum (30), a device (150) for supporting and adjustingthe bead cores and the carcass assembly being movably disposed betweenthe carcass building drum (30) and the tyre building drum (130), on asecond transfer track (50), a movably disposed belt building drum (60)carried by a shaft of the machine house (40), and a winding drum (70)for production of a belt-tread assembly carried by a shaft of a secondmachine house (42), which is also movably disposed on the secondtransfer track (50), and the drums are arranged on one horizontal axisand oriented one against each other, between the movably disposed beltbuilding drum (60) and the winding drum (70) being disposed a firsttransfer ring (80) to transfer a belt from the belt building drum (60)onto the tread building drum (70), an auxiliary track (90), arrangedperpendicularly to the first and second transfer track (20, 50) in ahorizontal plane above the first and second transfer track (20, 50) at acompleting place (140), which is disposed on the first transfer track(20), wherein a second transfer ring (100) for delivering a belt-treadassembly to the completing place (140), as well as for removing acomplete green tyre, is movably suspended on the auxiliary track (90)and arranged for moving along the auxiliary track (90) in a verticalplane, perpendicular to the transfer tracks (20 and 50) and intersectingthe transfer track (20) at the completing place (140), a device (170)for spiralling a narrow strip together with a serviser for a narrowstrip to be spiralled, which is associated with the winding drum (70), aserviser (180) for supplying materials for preparation of the carcassassembly to the carcass building drum (30), servisers (190) forsupplying breaker plies to the belt building drum (60), a serviser (200)for supplying tread to the winding drum (70) for production of thebelt-tread assembly, and a stitching device (160) for forming tyreedges, which is disposed at the completing place (140) from outside ofthe first transfer track (20).
 15. An assembly of devices for productionof green tyres, characterized in that the assembly of devices isarranged on two parallel transfer tracks (20 and 50) and comprises: onthe first transfer track (20), a movably disposed carcass building drum(30), a movably disposed tyre building drum (130), which is orientedopposite to the carcass building drum (30), a device (150) forsupporting and adjusting bead cores and carcass assembly being disposedbetween the carcass building drum (30) and the tyre building drum (130)at the completing place (140), on the second transfer track (50), amovably disposed belt building drum (60), a tread building drum (70),wherein the belt building drum (60) and the winding drum (70) forproduction of a belt-tread a ssembly a recarried by two independent,coaxially arranged shafts on one axis with a machine house (40), whichis movably disposed, being arranged so that the belt building drum (60)is disposed closer to the machine house (40) and the tread building drum(70) is arranged further apart from the machine house (40), and a firsttransfer ring (80) is movably disposed therebetween, an auxiliary track(90), arranged perpendicularly to the first and second transfer track(20, 50) in a horizontal plane above the first and second transfer track(20, 50) at the completing place (140), which is disposed on the firsttransfer track (20), wherein a second transfer ring (100) is provided inthe form of a transfer device (91), equipped with 2 to 4 transfer rings(101 to 104), which are regularly displaced and arranged rotationallyaround a rotation axis parallel to the first and second transfer track(20, 50) and the transfer rings (101 to 104) are rotationally disposedin a vertical plane, perpendicular to the rotation axis, as well as toboth the first and the second transfer track (20, 50) and if one of therings (101 to 104) extends to the completing place (140) and is disposedon one axis with the tyre building drum (130), the opposite ring (101 to104) is disposed on the axis of the building drums (60 and 70), a device(170) for spiralling a narrow strip together with a serviser for thenarrow strip to be spiralled, which is associated with the winding drum(70), a serviser (180) for supplying materials for preparation of thecarcass assembly to the carcass building drum (30), servisers (190) forsupplying breaker plies to the belt building drum (60), a serviser (200)for supplying tread to the winding drum (70) for production of thebelt-tread assembly, and a stitching device (160) for forming the tyreedges, which is disposed at the completing place (140) from an innerside of the first transfer track (20) and below the transfer device(91).